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9 lines
383 B
C++
9 lines
383 B
C++
MatrixXd A = MatrixXd::Random(3, 3);
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MatrixXd B = MatrixXd::Random(3, 2);
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cout << "Here is the invertible matrix A:" << endl << A << endl;
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cout << "Here is the matrix B:" << endl << B << endl;
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MatrixXd X = A.lu().solve(B);
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cout << "Here is the (unique) solution X to the equation AX=B:" << endl
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<< X << endl;
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cout << "Relative error: " << (A * X - B).norm() / B.norm() << endl;
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